123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687 |
- //---------------------------------------------------------------------------//
- // Copyright (c) 2013 Muhammad Junaid Muzammil <mjunaidmuzammil@gmail.com>
- //
- // Distributed under the Boost Software License, Version 1.0
- // See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt
- //
- // See http://kylelutz.github.com/compute for more information.
- //---------------------------------------------------------------------------//
- #define BOOST_TEST_MODULE TestThreefry
- #include <boost/test/unit_test.hpp>
- #include <boost/compute/random/threefry_engine.hpp>
- #include <boost/compute/container/vector.hpp>
- #include <boost/compute/random/uniform_real_distribution.hpp>
- #include "check_macros.hpp"
- #include "context_setup.hpp"
- BOOST_AUTO_TEST_CASE(generate_uint)
- {
- using boost::compute::uint_;
- boost::compute::threefry_engine<> random_engine(queue);
- boost::compute::vector<uint_> random_values(19, context);
- random_engine.generate(random_values.begin(), random_values.end(), queue);
- queue.finish();
- CHECK_RANGE_EQUAL(
- uint_, 19, random_values,
- (uint_(0x6b200159),
- uint_(0x99ba4efe),
- uint_(0x508efb2c),
- uint_(0xc0de3f32),
- uint_(0x64a626ec),
- uint_(0xfc15e573),
- uint_(0xb8abc4d1),
- uint_(0x537eb86),
- uint_(0xac6dc2bb),
- uint_(0xa7adb3c3),
- uint_(0x5641e094),
- uint_(0xe4ab4fd),
- uint_(0xa53c1ce9),
- uint_(0xabcf1dba),
- uint_(0x2677a25a),
- uint_(0x76cf5efc),
- uint_(0x2d08247f),
- uint_(0x815480f1),
- uint_(0x2d1fa53a))
- );
- }
- BOOST_AUTO_TEST_CASE(generate_float)
- {
- using boost::compute::float_;
- boost::compute::threefry_engine<> random_engine(queue);
- boost::compute::uniform_real_distribution<float_> random_distribution(0.f, 4.f);
- boost::compute::vector<float_> random_values(1024, context);
- random_distribution.generate(
- random_values.begin(), random_values.end(), random_engine, queue
- );
- std::vector<float_> random_values_host(1024);
- boost::compute::copy(
- random_values.begin(), random_values.end(),
- random_values_host.begin(),
- queue
- );
- queue.finish();
- double sum = 0.0;
- for(size_t i = 0; i < random_values_host.size(); i++)
- {
- BOOST_CHECK_LT(random_values_host[i], 4.0f);
- BOOST_CHECK_GE(random_values_host[i], 0.0f);
- sum += random_values_host[i];
- }
- double mean = sum / random_values_host.size();
- // For 1024 it can be 10% off
- BOOST_CHECK_CLOSE(mean, 2.0f, 10.0);
- }
- BOOST_AUTO_TEST_SUITE_END()
|